Mitigated CH 4 and N 2 O emissions and improved irrigation water use efficiency in winter wheat field with surface drip irrigation in the North China Plain

Wang, Guangshuai; Liang, Yueping; Zhang, Qian; Jha, Shiva Kumar; Gao, Yang; Su, Xiaojun; Sun, Jingsheng; Duan, Aiwang

doi:10.1016/j.agwat.2015.10.012

Cited by 93 publications

(36 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The great difference in N 2 O flux between these grasslands may be caused by the greater moisture in alpine grassland soils than in alpine steppe soils or temperate steppe soils. However, the daily mean N 2 O flux was smaller than that in the agricultural soils of the Northern China Plain (43.1 µg m −2 h −1 ) [45], indicating that in the latter, large N fertilizer inputs may have enhanced the emissions of N 2 O from agricultural soils by stimulating microbial growth and activity and promoting nitrification and incomplete denitrification. We found that P addition increased N 2 O emission, albeit moderately.…”

Section: N 2 O Emissionmentioning

confidence: 87%

Greenhouse Gas Emissions from the Tibetan Alpine Grassland: Effects of Nitrogen and Phosphorus Addition

et al. 2018

Self Cite

View full text Add to dashboard Cite

The cycle of key nutrient elements nitrogen (N) and phosphorus (P) has been massively altered by anthropogenic activities. Little is known about the impacts on greenhouse gas (GHG) emission of the large nutrient additions occurring in the alpine grasslands of the Tibetan Plateau. We investigated soil surface emissions of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) under control, N, P and combined nitrogen and phosphorus (NP) additions from July 2011 to September 2012. Compared to the control, CO2 flux significantly increased by 14.6% and 27.4% following P and NP addition, respectively. The interaction of NP addition had a significant influence on CO2 flux during the non-growing season and the spring thaw period. Compared to the control, CH4 flux decreased by 9.9%, 23.2% and 26.7% following N, P and NP additions, respectively, and no interactive effect of NP addition was found in any period. Soil N2O flux was significantly increased 2.6 fold and 3.3 fold, following N and NP addition treatments, respectively, and there was no interaction effect of NP addition together. The contribution of cumulative CO2 emission during the non-growing season was less than 20% of the annual budget, but cumulative CH4 and N2O emissions during the same period can account for 37.3–48.9% and 44.7–59.5% of the annual budget, respectively. Methane and N2O emissions did not increase greatly during the spring thawing period, with contributions of only 0.4–3.6% and 10.3–12.3% of the annual budget, respectively. Our results suggest that N and P addition could increase CO2 and N2O emissions and reduce CH4 emission. Furthermore, although the non-growing season is very cold and long, cumulative CH4 and N2O emissions are considerable during this period and cannot be neglected by future studies evaluating the greenhouse gas emission budget in the Tibetan plateau.

show abstract

Section: N 2 O Emissionmentioning

confidence: 87%

Greenhouse Gas Emissions from the Tibetan Alpine Grassland: Effects of Nitrogen and Phosphorus Addition

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…For example, increase in N 2 O emissions (up to 4.5 kg N 2 O ha −1 ) was observed in studies that applied intermittent irrigation as compared to traditional irrigation or continuous flooding [65,72,77,83,[86][87][88]91]. Similarly, a number of studies demonstrated that continuous flooding leads to lower N 2 O emissions as compared to water-saving irrigation treatments in studies done in China, South Korea, and the USA [57,64,71,76,84,85].…”

Section: Effects Of Irrigation On N 2 O Emissionsmentioning

confidence: 98%

“…A similar increase (19%) in CO 2 emissions was reported by Haque et al [72] in another study when they compared continuous flooding and intermittent drainage. Intermittent flooding in paddy fields significantly increases CO 2 emissions by up to 95% in a number of studies performed in China and Spain [77,84,87]. Tillage also played a major role in increasing CO 2 emissions.…”

Section: Effects Of Irrigation On Co 2 Emissionsmentioning

confidence: 99%

Irrigation and Greenhouse Gas Emissions: A Review of Field-Based Studies

et al. 2020

View full text Add to dashboard Cite

Irrigation practices can greatly influence greenhouse gas (GHG) emissions because of their control on soil microbial activity and substrate supply. However, the effects of different irrigation management practices, such as flood irrigations versus reduced volume methods, including drip and sprinkler irrigation, on GHG emissions are still poorly understood. Therefore, this review was performed to investigate the effects of different irrigation management strategies on the emission of nitrous oxide (N2O), carbon dioxide (CO2), and methane (CH4) by synthesizing existing research that either directly or indirectly examined the effects of at least two irrigation rates on GHG emissions within a single field-based study. Out of thirty-two articles selected for review, reduced irrigation was found to be effective in lowering the rate of CH4 emissions, while flood irrigation had the highest CH4 emission. The rate of CO2 emission increased mostly under low irrigation, and the effect of irrigation strategies on N2O emissions were inconsistent, though a majority of studies reported low N2O emissions in continuously flooded field treatments. The global warming potential (GWP) demonstrated that reduced or water-saving irrigation strategies have the potential to decrease the effect of GHG emissions. In general, GWP was higher for the field that was continuously flooded. The major finding from this review is that optimizing irrigation may help to reduce CH4 emissions and net GWP. However, more field research assessing the effect of varying rates of irrigation on the emission of GHGs from the agricultural field is warranted.

show abstract

“…However, different irrigation system affects soil moisture distribution drastically in the field. Surface drip irrigation has been found to reduce N 2 O emissions compared with flood irrigation [9], conventional furrow irrigation and side dress fertilization [10], and sprinkler or other irrigation systems [11]. Studies on effects of subsurface drip on GHG emissions are limited especially in orchards.…”

Section: Introductionmentioning

confidence: 99%

Subsurface Drip Irrigation Reduced Nitrous Oxide Emissions in a Pomegranate Orchard

Gao¹,

Hendratna²,

Cai³

et al. 2019

IJESD

View full text Add to dashboard Cite

Soil fertilization is one of the major sources for nitrous oxide (N 2 O) emissions and soil moisture is among the most important factors affecting its production. Thus, one of the important mitigation strategies in semiarid or arid regions is through irrigation and/or fertigation management. The objective of this research was to evaluate the effects of different drip irrigation methods and N application levels on N 2 O emissions. Nitrous oxide emission flux and N 2 O concentration in soil profile were measured in a pomegranate field for two growing seasons under two irrigation systems [subsurface drip irrigation (SDI) at ~0.5 m depth and traditional surface drip irrigation (DI)], and three N application rates (50%, 100%, and 150% of current practice rate). Both years' data showed that N 2 O emissions has a high and positive correlation with N fertilization events and application levels. Nitrous oxide emissions from DI at 100% and 150% N levels were over an order of magnitude higher compared to those from SDI based on the data of the first year. Data from the second year confirmed the first year's findings of high emissions from DI. A positive linear correlation between the N 2 O emission flux and N 2 O concentration in soil-gas phase was identified that supported emission data. This research demonstrated that although N fertilization is a major cause for N 2 O emissions, subsurface drip irrigation/fertigation can lead to a significant emission reduction in addition to other benefits, such as increased water and nutrient use efficiencies, and reduced weed pressure.Index Terms-Chemical nitrogen fertilizer, greenhouse gas emission, high-frequency drip irrigation.

show abstract

Mitigated CH 4 and N 2 O emissions and improved irrigation water use efficiency in winter wheat field with surface drip irrigation in the North China Plain

Cited by 93 publications

References 31 publications

Greenhouse Gas Emissions from the Tibetan Alpine Grassland: Effects of Nitrogen and Phosphorus Addition

Greenhouse Gas Emissions from the Tibetan Alpine Grassland: Effects of Nitrogen and Phosphorus Addition

Irrigation and Greenhouse Gas Emissions: A Review of Field-Based Studies

Subsurface Drip Irrigation Reduced Nitrous Oxide Emissions in a Pomegranate Orchard

Contact Info

Product

Resources

About